Invocation requirements

EQQUSINW has these invocation requirements:
Authorization
APF authorized, or supervisor state, or PSW key 0-7.
Dispatchable unit mode
Task mode.
Amode
24-bit, or ANY if APAR PQ74854 was applied.
ASC mode
Primary or access register (AR).
Interrupt status
Enabled for I/O and external interrupts.
Locks
No locks held.
Control parameters
All parameters must be addressable by the caller and in the primary address space.